中国科学院青藏高原研究所机构知识库
Advanced  
ITPCAS OpenIR  > 图书馆  > 学位论文
学科主题: 地理学::自然地理学
题名: 祁连山小冰期冰碛垄差分GPS测量及其地貌意义
作者: 刘斌
答辩日期: 2009
导师: 易朝路
专业: 自然地理学
授予单位: 中国科学院研究生院
授予地点: 北京
学位: 硕士
关键词: 小冰期 ;  冰碛垄 ;  后差分GPS ;  影响因素
索取号: S000020
部门归属: 图书馆
摘要: 祁连山是青藏高原东北边缘巨大山脉,介于甘肃和青海两省之间。山势西高东低。高度起伏于5000m上下,许多山峰海拔高度在5000m以上,发育着众多的现代冰川,是研究冰川地貌及其响应全球气候变化的理想场所之一。 小冰期的概念自1939年Matthes提出来以后,就被众多的学者接受与认同,对于小冰期的气候变化特征及机理也有众多的学者做个大量的工作,取得了一些列宝贵的成果。与祁连山地区小冰期的几次寒冷期相对应便是大多数现代冰川前缘分布有2道或者3道近代冰碛,这为研究小冰期冰碛垄的形态特征及影响因素提供了较好的先决条件。 小冰期冰碛垄形态特征受到众多因素的影响。笔者采用后差分GPS测量方法对祁连山东段、中段共六条冰川的小冰期冰碛垄形态进行了实地测量与研究,其中三条冰川朝北,三条冰川朝南,得到了关于小冰期冰碛垄有关面积、表面积、体积等较详细的参数。研究后表明祁连山小冰期冰碛垄的规模具有从东到西逐渐减小的趋势。规模最大的为最东段冷龙岭7号冰川小冰期冰碛垄,面积为11.4×105m2,表面积为13.8×105m2,体积为11.8×107 m3,规模最小的为最西边的团结峰3号冰川小冰期冰碛垄,其面积为1.9×105m2,表面积为2.67×105m2,体积为1.36×107 m3。在综合分析了上述六条冰川的气候条件、岩性等其它因素后,笔者认为就祁连山地区而言,区域气候差异很可能是造成小冰期冰碛垄规模差异的主要因素。
英文摘要: The Qilian Mountain is a great mountain which on the fringe of the North-eastern Qinghai-Tibet Plateau, between Gansu and Qinghai province. The altitude of the mountain goes down from west to east. The mountains rise and fall around 5000m and many peaks are more than 5000m above sea level, which develop a large number of modern glaciers. It is one of the ideal places to research the glacier geomorphology and their response to the global climate change. Since Matthes put forward the concept of the Little Ice Age in 1939, it was accepted and recognized by many scholars. Many researchers have done a lot of job on the characteristics and mechanisms of climate change of Little Ice Age. The leading edge of glaciers distributed two or three ranges of modern moraines in the Qilian Mountain, which correspond to the Little Ice Age cold period and provided a prerequisite to study the morphological characteristics and influencing factors. The geomorphology characters of Little Ice Age moraine are affected by many factors. The author measured six Little Ice Age moraines in the eastern and middle section of Qilian Mountains by differential GPS. Three of them are toward north and the rest are toward south. The author got detailed parameters such as the area, surface area, volume and other parameters of Little Ice Age moraines which had been measured. Research shows that the scale of Little Ice Age moraines reduced gradually from east to west in the Qilian Mountains. The largest one is the 7th glacier Little Ice Age moraine which locates the most eastern section of the Leng Long Ridge, with an area of 11.4 × 105m2, surface area of 13.8 × 105m2, volume of 11.8 × 107 m3. The smallest one is the 3rd glacier Little Ice Age moraine of Tuan Jie Feng which locates the most western section of Qilian Mountain, with an area of 1.9 × 105m2, surface area of 2.67 × 105m2, volume of 1.36 × 107 m3. As for the Qilian regions, the author reckons that the region climate difference is likely the main factor that influences the scale of Little Ice Age moraine basing on a comprehensive analysis on the climatic conditions, lithology and other factors of the above-mentioned six glaciers. Key words: Little Ice Age,moraine, differential GPS,influence factor
语种: 中文
内容类型: 学位论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/1213
Appears in Collections:图书馆_学位论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
刘斌.祁连山小冰期冰碛垄差分GPS测量及其地貌意义[硕士].北京.中国科学院研究生院.2009
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[刘斌]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[刘斌]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院青藏高原研究所 - Feedback
Powered by CSpace